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Apr 02 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 1020
Location: Rimini, Italy
PostPosted: Sun Apr 02, 2023 4:35 pm    Post subject: Apr 02 VH Reply with quote
Hi everyone,

Code:

+------------+-------+----------+
| 169 169 69 | 3 7 8 | 5  2  4  |
| 5   7   4  | 6 2 9 | 8  3  1  |
| 2   8   3  | 1 5 4 | 7  69 69 |
+------------+-------+----------+
| 8   3   1  | 4 9 6 | 2  7  5  |
| 69  5   2  | 8 1 7 | 3  4  69 |
| 4   69  7  | 2 3 5 | 69 1  8  |
+------------+-------+----------+
| 7   16  8  | 9 4 3 | 16 5  2  |
| 3   2   69 | 5 8 1 | 4  69 7  |
| 19  4   5  | 7 6 2 | 19 8  3  |
+------------+-------+----------+

Play this puzzle online at the Daily Sudoku site

Quote:
Remote Pair 6,9
r1c3-r8c3-r8c8-r3c8-r3c9-r5c9-r5c1-r6c2 and -6-9 in r1c2 and -3 in r9c1
r1c3-r8c3-r8c8-r3c8-r3c9-r5c9-r6c7-r6c2 and -6-9 in r1c2
r5c1-r5c9-r3c9-r3c8-r8c8-r8c3 and -9 in r9c1
or XY-Wing 1,6,9
r67c2,r9c1 and -9 in r5c1
r59c1,r7c2 and -6 in r6c2
or Skyscraper with number 9
r6c2,r9c1 SL in r69c7 and -6 in r5c1
r5c9,r9c7 SL in r59c1 and -9 in r6c7
or W-Wing with 6,9
r5c1,r6c7 SL with number 9 in r9c17 and -6 in r5c9,r6c2
r1c3,r5c1 SL with number 9 in r16c2 and -6 in r1c1
r1c3,r5c1 SL with number 9 in r8c3,r9c1 and -6 in r1c1
r1c3,r6c2 SL with number 6 in r15c1 and -9 in r1c2
r1c3,r6c2 SL with number 6 in r7c2,r8c3 and -9 in r1c2


Ciao Gianni
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glesco



Joined: 12 May 2022
Posts: 39
Location: North Vancouver, BC, Canada
PostPosted: Sun Apr 02, 2023 8:11 pm    Post subject: Reply with quote
Not that challenging this time. I used an XY-Wing.
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Greenvilleguy



Joined: 01 Jul 2022
Posts: 24
Location: US
PostPosted: Mon Apr 03, 2023 12:33 pm    Post subject: VH April 2 Reply with quote
I used a even number 69 chain starting with R1C3 and ending in R5C2. The result is that R1C2 cannot be a 6 or a 9.
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